From owner-freebsd-usb@FreeBSD.ORG  Thu Aug  6 21:38:08 2009
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Date: Thu, 6 Aug 2009 23:38:07 +0200
Message-ID: <90a5caac0908061438n7afa69eai323164fd51b55122@mail.gmail.com>
From: Lucius Windschuh <lwindschuh@googlemail.com>
To: Hans Petter Selasky <hselasky@c2i.net>, freebsd-usb@freebsd.org
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Subject: Re: reattach 3g0 device: could not allocate new device
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2009/8/6 Hans Petter Selasky <hselasky@c2i.net>:
> If you kldload u3g after plugging the device? Any change?

(u3g unloaded)
(plug in UMTS dongle)
dmesg:
 (cd0:umass-sim0:0:0:0): READ(10). CDB: 28 0 0 0 51 fc 0 0 1 0
 (cd0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
 (cd0:umass-sim0:0:0:0): SCSI Status: Check Condition
 (cd0:umass-sim0:0:0:0): UNIT ATTENTION asc:0,0
 (cd0:umass-sim0:0:0:0): No additional sense information
 (cd0:umass-sim0:0:0:0): Retries Exhausted
 ... (block is printed repeatedly)
 (cd0:umass-sim0:0:0:0): cddone: got error 0x6 back

$ kldload u3g
(nothing happens)
$ camcontrol eject cd0
 ugen0.3: <Novatel Wireless> at usbus0 (disconnected)
 umass0: at uhub0, port 2, addr 3 (disconnected)
 (cd0:umass-sim0:0:0:0): lost device
 (cd0:umass-sim0:0:0:0): removing device entry
 ugen0.3: <Novatel Wireless> at usbus0
 u3g0: <Data Interface> on usbus0
 u3g0: Found 2 ports.

This works. Strange, but an interesting hint.

Lucius